package P206;

/**
 * @Author DJ同学
 * @Date 2021/2/11 12:25
 * @Version 1.0
 */
public class ListNode {
    int val;
    ListNode next;
    ListNode() {}
    ListNode(int val) { this.val = val; }
    ListNode(int val, ListNode next) { this.val = val; this.next = next; }
}
